Trim tab for a boat



FIG. 1 is an isometric view of a trim tab for a boat, incorporating the inventive design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken away portions in FIGS. 1-4 indicate indeterminate length. 

The ornamental design for a trim tab for a boat, as shown and described. 